Machine for unhairing and working hides.



PATEN'I'ED AUG. 14, 1906.

THE Nmzms Perses ca., wAsHmaraN, n. c.

No. 828,588.` y PATBNTED AUG. 14, 1908. .1.8. 8 11.11 WHITNEY. MACHINEP08 UNHAIR'ING AND WORKING 1111188.

APPLICATION FILED NOV. 14:. 1904.

3 SHEETS-SHEET 2.

l'orvzey.

THE NoRRls PETERS co.. w'AsmNaraN, o. c.

N0. 828,5s8. PATNNTIID AUG.14, 1906.

I A. E. & N. I. WHITNEY. MACHINE IOR UNHAIRING AND WORKING HIDES.

APPLICATION FILED NOV.14 1904.

' 3 SHEETS-SHEET 3.

zgn/56.956.

@I f5. @ha al:

HE Molema-PETERS co.. wAsHuyaToN. n. C.

TD STATES PATENT OFFICE.

ARTHUR E. WHITNEY AND ROBERT F. WHITNEY, OFWINCHESTER, MASSACHUSETTS.

MACHINE FOR UNHAIRING AND WORKING HIDES.

Specification of Letters Patent.

Patented. Aug. 14, 1906.

Application filed November 14.1904. Serial No. 232.610.

To a/ZZ whom it may concern:

Be it known that we, 'ARTHUR E. WHIT- NEY and ROBERT F. WHITNEY,residents of Winchester, in the county of Middlesex and State ofMassachusetts, have invented jointly new and useful Improvements inMachines for Unhairing and Working Hides, of which the following, takenin connection with the accompanying drawings, is a specification.

Our invention relates to machines for unhairing and working hides and itconsists in certain novel features of construction, arrangement, andcombination of parts, which will be readily understood by reference tothe description of the accompanying drawings, and to the claims heretoappended and in which our invention is clearly pointed out.

Figure 1 of the drawings is an elevation of the left end of a machineembodying our invention. Fig. 2 is a plan of the left-hand portionthereof. Figs. 3 and 4 taken together represent a front elevationthereof, the dotted lines S S indicating the center of the machine. Fig.5 is a section on line A A on Figs. 2 and 3 looking toward the lef/t ofsaid figures. Fig. 6 is a vertical section on line B B on Fig. 5 lookingtoward the right of said figure. Fig. 7 is a similar section on line C Clooking in the same direction. Fig. 8 is a section through the bed-rollgear, illustrating its yielding attachment to the shaft of said roll,said section being on line D D on Fig. 5 drawn to an enlarged scale.Fig. 9 is a sectional elevation of the two-armed hub carried by thebed-roll and showing the yielding contact-bolts which arrest and limitthe motion of said bed-roll gear about said shaft. Fig. 10 is a plan ofthe same. Fig. 11 is a partial section on line E E on Fig. 3. Fig. 12 isa plan of the treadle-board drawn to a reduced scale. Fig. 13 is asection of the same on line F F on Fig. 12 looking toward the left ofsaid iigure.

In the drawings, 1 1 represent the main end frames, which are reversedcounterparts of each other and are connected together by the tie-girths2 in awell-known manner. In suitable bearin s in said frames is mountedthe shaft 3, having mounted thereon between said frames the workingcylinder 1, having formed upon or secured to its periphery two sets orseries of operating-blades arranged spirally thereon in oppositedirections from the center of its length in a wellek'now'n man= ner andhaving secured to its right-hand end outsideof itsbearing in the framethe drivH ing-pulley 5 and upon its other end the pinion 6, as shown inFigs. 1,2, 3, 5, and 6. u In suitable housings in said frames aremounted the boxes 7 in bearings in which the journals 8 of the roll 9have their bearings, said boxes being each provided with an upwardextension 10,having a shape resembling the letter L inverted, and eachof said boxes may be slightly adjusted vertically by means of a setscrew11, set in the bottom of its housing, said set-screw serving also as astop to limit the downward movement of said box. The frame 1 also has anupward extension 12, provided at its upper end with aforwardlyprojecting portion in which is formed a cylindrical housing toreceive a spring 13, the lower end of which rests upon the upper surfaceof the extension 10 of the box 7 and serves to press said box intocontact with the set-screw 11, its tension being regulated by the screw14 in an obvious manner.

To the outside of each frame 1 is pivoted by its lower end a lever 15,in bearings in which is mounted the bed-roll 16, having a surface ofrubber and arranged to be intermittently moved into and out of contactwith the feed-roll 9 and the working cylinder 4 to properly present thehide resting thereon to the action of said roll and cylinder. In boxes17, mounted in housings formed in said levers near their upper ends, ismounted the roll 18, which when said lever 15 is moved about its pivottoward the rear serves in co-Y operation with the bed-roll 16 topartially wrap the hide around the feed-roll 9, thereby increasing thecontact of the hide therewith and insuring a more elfective feedingthereof.

Each housing in which the boxes 17 are mounted is provided with a hingedcover 19, formed in one piece with the upwardly-projecting tubular hub20, in which is inclosed a spring 21, resting upon said box, withsuitable means for regulating its tension.

Each lever 15 has pivoted thereto one end of a toggle-link 22, the otherend of which is pivoted to the toggle-link 23, the opposite end of whichis in turn pivoted to a plunger'24, fitted to and movable endwise in acylindrical bearing in the stand 25, bolted to the outwardly-projectingshelf or bracket 26 on the IOO frame 1, said stand having secured to itsouter end a detachable extension 27, in which is fitted a heavy helicalspring 28, the tension of which may be regulated by means of the setscrew 29, all as shown in Fig. 1 1. The ivotpin which connects the twotoggle-linllgs has mounted thereon the forked upper end of a treadleconnection composed of the two parts 30 and 31, connected together, sothat its length may be adjusted as may be desired.

Each frame 1 has pivoted to its outside a treadle-lever 32, the frontends of said levers bein nove construction, to be more fully describedhereinafter, and the rear ends of said'treadlelevers are weighted topartially counterbalance said treadle-board and are pivoted to the lowerends of the parts 31 of the toggle connections, as shown in Fig. 1.

Each of the levers 15 has pivoted thereto near its upper end a rod 34,which has abearing in and is movable endwise through a fixed arm 34a,secured upon or formed in one piece with the tubular extension 27, isprovided with a shoulder near its inner end, has mounted thereon betweensaid shoulder and said arm a spring 35, and between said arm and thecollar 36, secured to the end of said rod, a spring 37 is mounted,having a length about equal to one-half the distance between said armand collar when the lever 15 is in the position shown in the drawings.

A pair of brackets 38 38 are secured to the outer face ofthe frame 1 atthe left end of the machine and have secured thereto the twoconnecting-plates 39 and 40, in bearings in which are secured in fixedor non-revoluble positions the two spindles 41 and 42. On the spindle 41is mounted so as to be freely revoluble thereon the long-toothed pinion43, provided with a sleeve-like hub 44, on which is firmly secured so asto be revoluble therewith the spur gear-wheels 45 and 46. On the spindle42 is mounted so as to be freely revoluble thereon the long-toothedpinion 47 provided with a sleeve-like hub 48, on which is firmly securedso as to be revoluble therewith the spur gear-wheel 49, which is engagedand has motion imparted thereto by the geare wheel 46.

The pinion 6v engages the gear-wheel 45 and imparts motion to the wholetrain of gearing.

The left-hand end of the shaft of the bedroll has loosely mountedthereon the longtoothed gear-wheel 50, arranged to alter nately engagethe pinions 43 and 47, accord ing to the position of the lever 15,whereby said bed-roll may be alternately revolved in opposite directionsand at different speeds at the will of the operator. The inner face ofsaid gear-wheel 50 has formed thereon the iiat diametrical flange 51, inwhich are set two conically-pointed screws 52 and 53, the points ofwhich engage conical detents in the connected by a treadle-board 33 of`heads of the bolts 54 and 55, set in bosses 56 and 57, respectively,which are formed in one piece with the hub 58, firmly secured upon thesaid bed-roll shaft, so as to revolve therewith, said bolts beingsurrounded by coiled springs which tend to press said bolts into contactwith the conical points of the screws 52 and 53, respectively, and yetpermit said bolts to yield to facilitate the engagement of the teeth ofthe gear 50 with the teeth of either pinion 43 or 47 and avoid a shockand possible injury to the parts when being transferred from one to theother of said pinions.

The front end of each treadle-lever 32 has secured thereto one end of asection of a treadle-board 33 of wood, which sections eX- tend towardeach other and are firmly secured at their adjacent ends to the U-shapedmetal section 60 by suitable bolts, thereby forming a rearward offset insaid treadleboard to enable the operator to stand nearer the front ofthe machine and in direct line with the main body of said treadle-board,the inner ends of said wooden sections being covered by the serratedmetal plates 61, `all as shown in Figs. 12 and 13.

The bedroll 16, the feed-roll 9, and the upper roll 18 have secured totheir right-hand ends the long-toothed vgear-wheels 62, 63, and 64,respectively, which when the treadle is depressed and the levers 15 arethereby moved into their rearmost positions engage with each other, soas to impart positive rotations to said feed-rolls, substantially asshown and described in Letters Patent No. 509,503, granted to Arthur E.Whitney November 28, 1893.

The stands 25 are each provided with an upwardly and rearwardlyprojecting arm 65, to the rear end of which is secured a buiferblock 66,to serve as a stop to limit the movements of the levers 15 toward thefront and minimize the shock of such movement.

The upper end of each frame extension 12 has secured thereto a stand 67,to the inclined front face of which is secured the fenderboard 68, whichserves to prevent the hide being accidentally thrown over to the rear ofthe feed-roll 9 when placing it in the machine in proper position to beoperated upon.

The operation of our invention .is as follows: The several parts of themachine being in the several positions shown in the drawings and itbeing desired to unhair one or more hides, the operator throws one endof a hide over the roll 18, allows it to descend at the rear of thebed-roll 16 and between it and the feed-roll 9 until the center of thelength of said hide has passed somewhat below the center of saidbed-roll, and power being applied to the pulley 5 to revolve the workingcylinder 4 in the direction indicated by the arrow a on Fig. 1 thegears43, 45, and 46 are revolved in the direction indicated by the arrow 5,and the gears 47 and 49 and the bedroll are revolved in the'directionindicated by the arrow c on said Fig. 1, thereby feeding the hide intothe machine to the desired point, when the operator places his foot uponand depresses the treadle-board, thereby moving the levers 15, with thebed-roll and the upper feed-roll 18, toward the rear and wrapping thehide partially around the feedroll 9 and forcing it into contact withthe working cylinder 4, and at the same tinte by the transfer of thegear 50 from engagement with the pinion 47 to engagement with the pinion43 the rotations of the rolls 9, 16, and 18 are reversed, and the hideis fed upward against the action of the working cylinder 4, the edges ofthe blades of which are moving in the reverse direction to that of themovement of the hide until the hide is withdrawn from the machine, whenthe operator removeshis foot from the treadle-board, when by the actionof gravity upon the weighted rear ends of the treadle-levers 32,assisted by the reactionof the springs 37, the levers 15, with the rolls16 and 18, are moved toward the front into the position shown in thedrawings, and their rotations are again reversed. The hide is thenturned end for end and again thrown over the roll 18, is fed into themachine as before until the center of its length is slightly below thecenter of the bed-roll 16, when the operator again depresses thetreadle-board, the rolls 16 and 18 are again moved to the rear. Therotations of the rolls 9, 16, and 18 are again reversed and the hide isagain fed upward and out of the machine. This train of gearing, throughwhich rotary motion in opposite directions is imparted to the bed andfeed-rolls from the 'working or bladed cylinder, which always revolvesin the same direction, in combination with the levers or radius-arms 15,carrying the bed-roll 16 and the upper feed-roll 18, is a greatadvantage, in. that the rotation of said rolls in one direction assiststhe operator in placing the hide in position to commence the operationof unhairing, and when moving in the opposite direction the hide is rmlyheld in the grip of said rolls and is thereby positively fed upward andout of the machine, and this reversal of motion is accomplished by thedepression and release of the treadle-board. The box 7, provided withthe extension 10, in combination with the spring 13 and its housingcarried by the extension 12 of the frame 1, is also of importance in ourinvention as a practical and effective means of rendering the feed-rollvertically yielding.

The rearward movement of the plunger 24, caused by the reaction of thespring 28, is limited and may be regulated by the rod 69, fitted to andmovable endwise in a bearing in the stand 25 and screwed into the lug70, formed upon and projecting downward from the under side of saidplunger and provided at its front end with suitable adjusting and checknuts, as shown in Figs. 3 and 11.

What we claim as new, and desire to secure by Letters Patent of theUnited States, is

1. In a hide-working machine, the combination, with a helically-bladedworking cylinder constructed and arranged to be revolved always in thesame direction, of a pinion carried by the shaft of said cylinder; along and pointed toothed pinion and two spur gear-wheels arranged sideby side and revoluble in unison about the same axis, one of saidspur-gears being engaged by said working-cylinder pinion a second longand pointed toothed pinion and a spur gearwheel carried by and revolublewith said second long-toothed pinion and engaging with and having motionimparted thereto by one of the spur gear-wheels carried by thefirstmentioned long-toothed pinion; a bed-roll mounted in movablebearings; a long and pointed toothed gear carried by the shaft of saidbed-roll in position to`be alternately engaged with said twolong-toothed pinions; and means for moving said bed-roll into and out ofcontact with said working cylinder.

2. In ahide-working machine, the combination of a helically-bladedworking cylinder; means for revolving said cylinder always in the samedirection; a pinion 6 carried by the shaft of said cylinder; the twospindles 41 and 42 mounted in fixed positions in fixed bearings parallelwith each other; the pinion 43 and gears 45 and 46 firmly securedtogether so as to be freely revoluble in unison about said spindle 41said gear 45 being engaged by said pinion 6; the pinion 47 provided withthe sleeve-like hub 48 and mounted upon and freely revoluble about thespindle 42; the gear-wheel 49 secured to and revolublewith said pinion47, and arranged to be engaged by the gear 46; a pair of levers 15pivoted to fixed portions of the machine; a bed-roll mounted in suitablebearings in said levers; a long and pointed toothed gear 50 mounted onthe shaft of said bed-roll in position to engage either pinion 43 or 47;a treadle mechanism; and two pairs of togglelinks; and means forconnecting each of said toggles to said treadle.

3. In a hide-working machine, the combination, with a helically-bladedworking cylinder constructed and arranged to be revolved always in thesame direction, of a bedroll mounted in movable bearings and adapted tobe intermittently moved toward and from said working cylinder; a pair oflevers carrying said bed-roll means for moving said levers about theirpivots; a rod pivoted to each of said levers and provided near itspivotal end with a shoulder and with a collar at its other end andfitted to and movable end- Wise in a fixed bearing between said shoulderand collar; a helical spring surrounding said rod between said shoulderand bearing; and

roo

a second helicalspring surrounding said rod between said bearing andcollar, as and for the purposes described. y

4. In an unhairing or hide-working machine, the combination of ahelicallyebladed cylinder mounted in fixed bearings and revoluble alwaysin the same direction; a pinion carried by the shaft of said cylinder;the gears 43, 45, 46, 47 and 49, arranged relative to, and cooperatingwith each other and said pinion as set forth; the bed-roll 16 mounted inmovable bearings; means for moving said bed-roll toward and from saidbladed cylinder; the hub 58 having formed in one piece therewith, thetwo chambered bosses 56 and 57 firmly secured on the shaft of saidbedroll; the bolts 54 and 55 set in said bosses; springs surroundingsaid bolts beneath their heads; adjustable stop-nuts on said bolts tolimit their upward movement; and the gear 50 'loosely mounted upon theshaft of said bed-roll and provided with the laterallyprojecting flange51, constructed and arranged to alternately engage the heads of thebolts 54 and 55, as and for the purposes described.

5. In a hide-working machine, the combination of a helically-bladedcylinder mounted in fixed bearings and revoluble always in the samedirectionfa pinion carried by the shaft of said cylinder; the gears 43,45, 46, 47 and 49, arranged relative to, and cooperating with each otherand with said pinion, as set forth; the bed-roll 16 mounted in movablebearings; means for moving said bed-roll to ward and from said bladedcylinder; the hub 58 having formed integral therewith the two chamberedbosses 56 and 57 firmly secured on the shaft of said bed-roll; the bolts54 and 55 set in said bosses and each provided with a conical recess inthe top of its head; s rings surrounding said bolts beneath their eads;the gearwheel 50 mounted loosely upon the shaft of said bed-roll andprovided with the laterally-projecting diametrical flange 51; and theconically-pointed set-screws 52 and 53 set in said flange in positionsto alternately engage said conical recesses, as and for the purposes setforth.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, on this 9th day of November,A. D. 1904.

ARTHUR E. WHITNEY.

ROBERT F. VHITNEY.

Witnesses:

N. C. LOMBARD, WM. E. KINGsToN.

